Three linear heterometallic Co^II₂Ln^III₂ (Ln = Dy (1), Gd (2), Y (3)) coordination clusters have been synthesized under solvothermal conditions. Single-crystal X-ray diffraction studies revealed that all three compounds are isostructural and crystallize in the monoclinic space group P2₁/c with Z = 2. The dc magnetic susceptibilities for all three compounds have been measured and the magnetic exchange couplings (for 2) and magnetic anisotropy for Co^II ions (for 2 and 3) have been calculated and discussed. Furthermore, the ac magnetic susceptibility measurements have been performed and show that Co^II₂Dy^III₂ compounds 1 display single-molecule magnetic (SMM) behavior.

中文翻译：

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合成，结构和线性的磁特性{钴^II ₂ LN ^III ₂ }协调集群†

在溶剂热条件下合成了三个线性杂金属Co ^II ₂ Ln ^III ₂（Ln = Dy（1），Gd（2），Y（3））配位簇。单晶X射线衍射研究显示，所有三个化合物是同构和结晶单斜晶系空间群P 2 ₁ / ç与ž对于所有三种化合物= 2的直流磁化率已经测量和磁性交换耦合（为2）和Co ^II离子的磁各向异性（对于2和3）已进行了计算和讨论。此外，已经进行了交流磁化率测量，结果表明Co ^II ₂ Dy ^III ₂化合物1显示出单分子磁（SMM）行为。